Rotor and cutting technology

WEIMA’s innovative V-rotor with SuperCut cutting gap adjustment ensures the optimum cutting geometry that adapts precisely to the material requirements. The result: more homogeneous shredding results, universal applicability, high throughput rates, lower energy consumption, resistance to foreign matter and low wear.

The F-Rotor optimally shreds flexible materials such as filaments, tapes, ropes, cords, veneers and films. Thanks to the special blade pitch and cutting geometry, wrapping of the materials is prevented, which could otherwise lead to melting and blockages due to friction. The blades engage fully with the counter blade and, together with a narrow cutting gap, ensure a controlled feed and fast, efficient shredding.

The FineCut rotor was specially developed for fine shredding applications. It is used in the shredders of the FineCut series and is ideal for shredding materials to a small and uniform particle size, which is required for downstream recycling processes.

The PreCut rotor is specially designed for the pre-shredding of large and bulky materials. It is used in the PreCut shredders, which are ideal for the first stage of a shredding process before the material is further processed in finer steps. The rotor is extremely durable and robust to withstand the demands.

The PowerLine rotor is a versatile and powerful rotor that has been specially developed for the demanding shredding of a wide range of materials. The rotor is used in the PowerLine series, which is particularly suitable for industrial applications where a robust and flexible solution is required.

Smooth cutting blades are extremely resistant to breakage from impurities and are characterized by a long service life, even with aggressive materials. Ideal for breakable applications such as chipboard and can also be used in a mixed configuration.

Concave cutting blades are used as standard in single-shaft shredders and universal shredders. The particularly good material feed results in a significantly lower power requirement when shredding materials such as wood and hard plastics.

The use of extra-concave cutting blades significantly improves the material feed, which further optimizes the cutting performance and prevents the material from simply being crushed. Typical example applications are filaments and films.

Minimal maintenance: The use of carbide cutting blades ensures maximum service life. This blade variant is available both as a solid carbide version and with brazed carbide plates; the carbide itself can be selected variably. Typical applications include abrasive materials such as fiberglass and sand-contaminated agricultural film.

WEIMA trapezoidal cutting knives offer maximum resistance to impurities. Thanks to the stable cutting edge and consistently good cut, lump formation is avoided. The flat cut is particularly advantageous for films in order to obtain output material that is as disintegrated as possible.

The innovative CrossCut knives offer numerous advantages: Significantly reduced energy requirements, quiet and gentle rotor running behaviour and a higher material throughput. They also result in evenly shredded material with fewer fines and longer blade life.

WEIMA FineCut knives are only used in FineCut secondary shredders. They enable particularly precise and uniform shredding to small particle sizes. Their special cutting geometry enables a precise cut, which increases the efficiency of the shredding process. The fine shredding also contributes to lower energy consumption and ensures optimum results in downstream processes.